Can-testing machine



L e e h S m e e h S 3 m N H NU S G D 0M E G N A 0 (No Model.)

No. 522,259. Patented July 3, 1894.

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J. G. HODGSON. CAN TESTING MACHINE N0. 522,259. Patented July 3, 1894.

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J. G. HODGSON.

CAN TESTING MAUHINE.

Patented July 3, 1894.

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the following is a specification.

I UNITED STATES PATENT OFFICE.

JOHN G. I-IODGSON, OF MAYWOOD,ILLINO1S,ASSIGNOR TO EDWIN NORTON, or SAMEPLACE, AND OLIVER w. NORTON, OF CHICAGO, ILLINOIS.

CAN-TESTING MACHINE.

' SPECIFICATION forming part of Letters Patent N 0. 522,259, dated July3, 1894.

A lication filed October 4, 1892. Renewed March 14, 1894- $erialNo.503,560. (No model.)

To all whom it may concern.-

Be it known that I, JOHN G. HODGSON, a citizen of the United States,residing in Maywood, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Oan-Tes ting Machines, of whichThis invention relates to improvements in machines for testing cans, andmore particularly to the improvements upon the can testing machineheretofore patented in Letters Patent of the United States, No. 287,048,of October 23,1883, granted to Edwin Norton and myself.

The object of the present invention is to simplify the construction of,said former machine and render its operation more certain and exact,especially in respect to the closing or sealing the opening of the canat the time it is immersed in the hot water bath. And the further objectis to adapt the machine for operation upon large cans, such as ordinaryfive gallon square petroleum cans.

The invention consists in the novel devices and novel combinations ofparts and devices herein shown and described, and more particularlypointed out in the claims.

In the accompanying drawings, which form a part of this specification,and in which the same letters of reference indicate the same or likeparts throughout the several views, Figure l is a side elevation, partlyin section, of a machine embodying my invention, the same howevershowing only one end'or half of the machine. Fig. 2 is a plan view; Fig.3 an enlarged detail side elevation of a portion of the can carrierchain. Fig. 4. is a detail vertical sectional view of one link of-thecarrier chain, and Fig. 5 an enlarged plan view showing two links of thecarrier chain. Fig. 6 is a detail view illustrating the Opera tion ofthe inclined or approaching tracks or cams H H for opening and closingthe can clamping slides, as hereinafter described.

In the drawings A represents the frame of the machine, B the tank forholdingthe hot water in which the cans are immersed during the testingoperation.

B B represents steam pipe for heating the water in the tank.

C represents one of the pulleys or sprocket body to be received therebythat the pocket or cradle will fit the can body, as is clearly indicatedin Fig. 3. The two side bars at d of each link, are each furnished witheyes or bearings d d to receive the hinge pivots dd. The pivot pins 01are each provided with a flanged wheeler anti-friction roller 01 to rideupon the track F by which the carrier chain is supported and guidedthrough and under the water tank. The tracks or rails F are,

preferably, provided with upright flanges f. The flange d on the wheelor roller d serves to keep the chain carrier in proper position betweenthe tracks F F. The side bars d d" for each link are each provided witha horizontal web or flange d ,'which is furnished with a guide or way 61for a laterally recip-' rocating slide G which carries the-can clampingdevice 9, one at each side of the chain.

The clamping devices g g each have an overhanging lip or projection gwhich fits over the corner x of the can X, and thus serves to hold thecan in place. in its pocket or cradle when the empty can is beingimmersed in and carried through the bath of hot water. Each of theslides G is also furnished with a pad to press against the end of thecan, the pad 9 at one end being preferably made of rubber or other likematerial, and adapted to close the opening wwhich is in one head of theThis pad 9 is preferablyfurnished with can. a beveled inner face g sothat the same may when pressure is exerted against the head of the can,as this pressure will tend to cause the head to spring inward at itscenter, as

indicated by the dotted lines 00 at Fig. 4t. 7

The other pad 9 which presses against the opposite end of the can wherethere is no opening in the head, may, preferably, be made fiat and ofany suitable'yielding material gaging these rollers g on the oppositeside,

serves to open the slides G G to permit the discharge of the cans fromthe carrier, and also to permit the cans tobe delivered into thecarrier.

The pulley 0, one at each end of the tank around which the chain carriertravels, con sists of two wheels 0 0 between which the links of thechain fit or are suspended, each wheel 0 having notches c on itsperiphery to receive the flanged wheels (1 on the pivot pin cl.

K is a can delivery wheel furnished with pockets K to receive the cansfrom a chutej K and deliver them one by one into the; pockets or cradlesof the endless link chain driven from the shaft 0' of the pulley O by.K0 is St curved guard fixed to the frame and evtendmeans of theintermeshing gears K ing around a portion of the circumference of thedelivery wheel K for the purpose of hold-j ing the can in the pockets ofsuch wheel as,

it revolves.

The two tracks H H which operate the slides G G for clamping the can areslightly inclined toward each other at the point where the slides areforced together to clamp the can, as is clearly shown in Figs. 2 and 6;and these tracks or ways H II incline outwardly or spread apart at thepoint where the slides G G are to be separated to permit the dischargeof the can, as is clearly indicated in Fig. 6. As the two tracks or waysH H are thus inclined to and from each other at certain points theyoperate as cam tracks, or stationary cams.

I claim- 1; In a can testing machine, the combination with a tank forholding hot water, of an endless link-chain can-carrier composed of aseries of solid links each comprising apair of side bars rigidlyconnected together and furnished with pockets or cradles for receivingthe cans, and devices for clamping the cans and closing the openingstherein mounted upon and carried by said links,a track for said carrierchain, and a cam or track for operating said clamping devices,substantially as specified.

2. In a can testing machine, the combination of tank B, link-chaincan-carrier D having links furnished with pockets or cradles to receivethe cans, a track for said carrier chain and wheels or rollers on thelinks of said chain, substantially as specified.

3. In a can testing machine, the combination of tank B, link-chaincan-carrier D havin g links furnished with pockets or cradles to receivethe cans, a track for said carrier chain and wheels or rollers on thelinks of said chain, said wheels or rollers having flanges,substantially as specified.

4. In a can testing machine, the combination with a tank, a can carrierhaving pockets or cradles to receive the cans, clamps or slidesfurnished with lips or projections adapted to fit over the end edges ofthe can to hold the cans in said pockets or cradles, substantially asspecified.

5. In a can testing machine, the combination with a tank, a can carrierhaving pockets or cradles to receive the cans, clamps or slidesfurnished with lips or projections adapted to fit over the end edges ofthe can to hold the cans in said pockets or cradles, and elastic pads onsaid clamps or slides for closing the opening in the can head,substantially as specified.

6. In a can testing machine, the combination with a tank, a can carrierhaving pockets or cradles to receive the cans, clamps or slidesfurnished with lips or projections adapted to fit over the end edges ofthe can to hold the cans in said pockets or cradles, an elastic pad onsaid clamps or slides for closin g the opening in the can head, saidelastic pads having beveled faces, substantially as specified.

7. In a can testing machine, the combination with a tank 13 of cancarrier furnished with pockets or cradles to receive the cans, clampslides G furnished with wheels or rollers g and a track adapted toengage said wheels or rollers for operating said slides, substantiallyas specified.

S. In a can testing machine, the combination with a tank B of acancarrier furnished with pockets or cradles to receive the cans, clampslides G furnished with wheels or rollers g and a track adapted toengage said wheels or rollers for operating said slides, said slideshaving elastic pads 9 substantially as specified.

9. In a can testing machine, the combination with a tank 13 of a cancarrier furnished with pockets or cradles to receive the cans, clampslides G furnished with wheels or rollers (Z and a track adapted toengage said wheels or rollers for operating said slides, said slideshaving elastic pads g and lips or projections g, substantially asspecified.

10. In a can testing machine, the combination with tank 13 of alink-chain can-carrier D, the links whereof consist each of a pair ofside plates d d secured rigidly together by cross bars d forming thepocket orcradle to receive the cans, substantially as specified.

11. In a can testing machine, the combination with the tank 13 of alink-chain can-carcross bars 01 forming the pocket or cradle to receivethe cans, said side bars d d of contiguous links being pivoted togetherby pins d, furnished with friction wheels or rollers (1 p and a trackfor said carrier substantially as specified. I

13. In a can testing machine, the combination with tank B of alink-chain can-carrier D, the links whereof consist each of a pairofside plates d d secured rigidly together by cross bars 01 forming thepocket or cradle to receive the cans, said side bars d d of contiguouslinks being pivoted together by pins d, furnished with friction wheelsor rollers d and pulley O for said carrier D composed of a pair ofwheels 0 c, furnished with notches c in their periphery to engage saidwheels or rollers d onthe pivots d'of said links, and a. track for saidcarriersubstantiallyas specified.

14. In a can testing machine, the combination with tank B, of a cancarrier D furnished with pockets or cradles to receive the cans and acan delivery wheel K, having can peck: "ets K arranged and adapted todeliverthe cans into the pockets of said carrier, substantially asspecified.

15. In a can testing machine, the combination with tank B, of a cancarrier D furnished with pockets or cradles to receive the cans and adelivery wheel K, having can pockets K arranged and adapted to deliverthe cans into the pockets of said carrier, and a guard K cooperatingwith said can delivery wheel K, substantially as specified. 4 Dated atChicago, September 30, 1892.

. JOHN G. HODGSON.

Witnesses:

LEW. E. CURTIS, EDMUND ADoooK.

